New Scalable Sulfur Cathode Containing Specifically Designed Polysulfide Adsorbing Materials

Because of its considerable theoretical specific capacity and energy density, lithium-sulfur battery technology holds great potential to replace lithium-ion battery technology. However, a versatile, low-cost, and easily scalable bulk synthesis method is essential for translating bench-level developm...

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Bibliographic Details
Published in:Materials 2024-02, Vol.17 (4), p.856
Main Authors: Suzanowicz, Artur M, Turner, Bianca, Abeywickrama, Thulitha M, Lin, Hao, Alramahi, Dana, Segre, Carlo U, Mandal, Braja K
Format: Article
Language:English
Subjects:
Carbon
Cathodes
Conductivity
Decay rate
Design
Electrical resistivity
Electrochemical analysis
Electrons
Force and energy
Graphene
Lithium
Lithium sulfur batteries
Lithium-ion batteries
Nanoparticles
Nitrogen
Polymerization
Polysulfides
Rechargeable batteries
Sulfur
Sulfur compounds
Sulfur content
Synthesis
Titanium
Titanium dioxide
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Summary:Because of its considerable theoretical specific capacity and energy density, lithium-sulfur battery technology holds great potential to replace lithium-ion battery technology. However, a versatile, low-cost, and easily scalable bulk synthesis method is essential for translating bench-level development to large-scale production. This paper reports the design and synthesis of a new scalable sulfur cathode, S@CNT/PANI/PPyNT/TiO (BTX). The rationally chosen cathode components suppress the migration of polysulfide intermediates via chemical interactions, enhance redox kinetics, and provide electrical conductivity to sulfur, rendering outstanding long-term cycling performance and strong initial specific capacity in terms of electrochemical performance. This cathode's cell demonstrated an initial specific capacity of 740 mA h g at 0.2 C (with a capacity decay rate of 0.08% per cycle after 450 cycles).
ISSN:1996-1944
1996-1944
DOI:10.3390/ma17040856